Browsing by Author "Altuntaş, Derya Bal"
Now showing items 1-13 of 13
-
A biochar-modified carbon paste electrode
The present work examıned the use of biochar derived from tea waste as a novel electrode material. For the fabrication of the biochar electrode, suitable amounts of biochar and graphite were mixed with mineral oil for the ... -
Centri-voltammetric detection of epinephrine
Altuntaş, Derya Bal; Ören, Tuğba; Anik, Ülkü (Royal Soc Chemistry, 2016)The present study demonstrates a novel approach that has been proposed for epinephrine detection by using centri-voltammetry. the principle of the method is based on the accumulation of an analyte, here epinephrine, onto ... -
Determination of exogenous adrenaline levels in patients undergoing cardiopulmonary resuscitation
Altuntaş, Mehmet; Altuntaş, Derya Bal; Aslan, Sema; Yılmaz, Ersin; Nalbant, Ercan (Amer Chemical Soc., 2023)Core-shell quantum dot ZnS/CdSe screen-printedelectrodeswere used to electrochemically measure human blood plasma levels ofexogenous adrenaline administered to cardiac arrest patients. Theelectrochemical behavior of ... -
Development of all-solid-state antidiabetic drug metformin-selective microsensor and its electrochemical applications
Altuntaş, Derya Bal (Wiley-V C H Verlag Gmbh, 2020)In this study, all-solid-state type potentiometric PVC membrane selective microsensor was developed for Metformin (MET) which is an antidiabetic drug active substance. Metformin-tetraphenylborate (MET-TPB) ion-pair was ... -
Development of MoS2 and Au nanoparticle including disposable CEA-based immuno-cytosensor platforms
Altuntaş, Derya Bal; Nalkıran, Hatice Sevim; Aslan, Sema; Yolcu, Zuhal (Springer, 2022)In this study, an electrochemical biosensor for determination of Carcinoembryonic antigen (CEA) biomarker using human breast ductal adenocarcinoma (MCF-7) and human ovarian adenocarcinoma (SK-OV-3) cancer cells was presented. ... -
Development of quasi-flexible solid polymer blend electrolytes and boron carbide reinforced tea waste electrodes for supercapacitors
Manfo, Theodore Azemtsop; Şahin, Mustafa Ergin; Bal Altuntaş, Derya (Elsevier, 2025)This study aims to create a prototype supercapacitor (SC) using free-standing-solid polymer electrolytes and tea waste (TW) doped boron carbide (B4C) electrodes. Quasi-solid polymer electrolyte (QSPE) films are made using ... -
An electrochemical immuno-cytosensor modified with nanofibers for the determination of a carcinoembryonic antigen
Yıldızbakan, Zehra; Altuntaş, Derya Bal; Nalkıran, Hatice Sevim; Aslan, Sema; Mamuk, Atilla Eren; Koçak, Çağdaş; Kurt, Şeymanur; Nalkıran, İhsan; Yener, Çiğdem; Ünlü, C. Gökhan (Springer, 2024)In this study, La0.25Fe0.75FeO3 (PNp)perovskite nanoparticle was synthesized using the sol–gel method. PNp-coated polyacrylonitrile (PAN) nanofibers were prepared by electrospinning on the pencil graphite electrode (PGE) ... -
Electrochemical properties of coumarin 500 encapsulated in a liquid crystal guided electrospun fiber core and their supercapacitor application
Mamuk, Atilla Eren; Koçak, Çağdaş; Aslan, Sema; Altuntaş, Derya Bal (Amer Chemical Soc., 2022)Here, we first report a study on coumarin 500 and liquid crystal including polyacrylonitrile nanofibers in terms of synthesis, characterizations, and supercapacitor performances. SEM, POM, FTIR, and DSC measurements showed ... -
Graphene-metallic nanocomposites as modifiers in electrochemical glucose biosensor transducers
Altuntaş, Derya Bal; Tepeli, Yudum; Anık, Ülkü (Iop Publishing Ltd, 2016)Graphene sheets and three different graphene-metallic nanocomposites including graphene-copper (graphene-Cu), graphene-nickel (graphene-Ni) and graphene-platinum (graphene-Pt) were prepared and characterized in the first ... -
Micro-Sized glucose biosensor based on composite pH sensor
Today's scientific and technical advances have led to significant advances in biosensor technology, leading to widespread use of biosensors in areas such as food technology, the environment, pharmaceuticals and clinical ... -
MoS2/Chitosan/GOx-Gelatin modified graphite surface: Preparation, characterization and its use for glucose determination
Altuntaş, Derya Bal; Kuralay, Filiz (Elsevier, 2021)Graphene-like new generation of two dimensional (2D) nanomaterials, in particular the family of transition metal dichalcogenides (TMDCs) have been attracting a wide range of research interest. Among the family of TMDCs, ... -
Syntheses, crystal structures, hirshfeld surface analyses and electrochemical etoposide/camptotechin sensor applications of acetaldehyde oxime derivatives
Topkaya, Cansu; Aslan, Sema; Hökelek, Tuncer; Göktürk, Tolga; Kıncal, Sultan; Güp, Ramazan; Bal Altuntaş, Derya (Elsevier, 2022)(E)-2-(4-Hydroxyphenyl)-2-oxoacetaldehyde oxime monohydrate (I) and (E)-2-(4 Nitropheny1)-2oxoacetaldehyde oximes (II) were synthesized from 4'-hydroxyacetophenone and 4'-nitroacetophenone, respectively. Their structures ... -
Synthesis of new carbon material produced from human hair and its evaluation as electrochemical supercapacitor
Altuntaş, Derya Bal; Aslan, Sema; Akyol, Yeşim; Nevruzoğlu, Vagif (Taylor & Francis Inc, 2020)In this study, carbon material similar to graphene structure (GLS) was prepared from graphite and the carbonization of Turkish human hair fibers (HHC) and utilized for the modification of electrode to evaluate the ...
